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3|x + y|^2 - (xy)^2. if x = 3 and y = -5

1 Answer

4 votes

Answer:

-213

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Explanation:

Step 1: Define

3|x + y|² - (xy)²

x = 3

y = -5

Step 2: Evaluate

  1. Substitute: 3|3 - 5|² - (3(-5))²
  2. Multiply: 3|-2|² - (-15)²
  3. Exponents: 3|-2|² - 225
  4. Absolute Value: 3(2)² - 225
  5. Exponents: 3(4) - 225
  6. Multiply: 12 - 225
  7. Subtract: -213
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